ArcEngine开发之导出地图（C#）
1、界面如下：
2、实现步骤
a、创建新窗体，ExportMapForm
b、添加控件ComboBox，TextBox，Button等，具体参数设置如下：
| TextBox |
txtFileName |
用于显示输出路径，ReadOnly设置为true |
| Button |
btnSave |
显示“路径”，用于设置文件导出位置 |
| NumbericUpDown |
txtResolution |
选择分辨率，默认value=96 |
| CombiBox |
cmbPageSize |
显示“图片尺寸”，集合：自定义大小、A4、A3、A2、A1、A0 |
| TextBox |
txtWidth |
宽度 |
| TextBox |
txtLength |
长度 |
| RadioButton |
radioButton1 |
显示“英寸” |
| RadioButton |
radioButton2 |
显示“厘米” |
| RadioButton |
radioButton3 |
显示“像素” |
c、框体的源代码如下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Output;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using System.Text.RegularExpressions;
using ESRI.ArcGIS.Controls;
namespace GIS
{
public partial class ExportMapForm : Form
{
private double pWidth, pHeight;
private IActiveView pActiveView=null;
public ExportMapForm(IHookHelper hookHelper)
{
InitializeComponent();
pActiveView = hookHelper.ActiveView;
}
private void btnSave_Click(object sender, EventArgs e)
{
this.saveMapFileDialog.ShowDialog();
this.txtFileName.Text = saveMapFileDialog.FileName;
}
private void cmdOK_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
if (!IsNumbericA(txtWidth.Text))
{
MessageBox.Show("请输入数字！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtWidth.Focus();
return;
}
if (!IsNumbericA(txtHeight.Text))
{
MessageBox.Show("请输入数字！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtHeight.Focus();
return;
}
if (txtResolution.Value > 1)
{
ExportTool();
}
this.Cursor = Cursors.Default;
}
private void ExportTool()
{
IExport pExport=null;
// IExportJPEG pExportFormat;
IWorldFileSettings pWorldFile=null;
IExportImage pExportType;
IEnvelope pDriverBounds = null;
// int lScreenResolution ;
ESRI.ArcGIS.Display.tagRECT userRECT=new ESRI.ArcGIS.Display.tagRECT();
IEnvelope pEnv=new EnvelopeClass();
// double dWidth;
// double dHeight;
int lResolution;
lResolution = Convert.ToInt32(this.txtResolution.Value);
switch (this.saveMapFileDialog.Filter.ToString().Trim().Substring(0,3))
{
case "jpg":
pExport = new ExportJPEGClass();
break;
case "bmp":
pExport = new ExportBMPClass();
break;
case "gif":
pExport = new ExportGIFClass();
break;
case "tif":
pExport = new ExportTIFFClass();
break;
case "png":
pExport = new ExportPNGClass();
break;
case "emf":
pExport = new ExportEMFClass();
break;
case "pdf":
pExport = new ExportPDFClass();
break;
case ".ai":
pExport = new ExportAIClass();
break;
case "svg":
pExport = new ExportSVGClass();
break;
default:
pExport = new ExportJPEGClass();
break;
}
if (this.txtFileName.Text.ToString().Trim() != "")
{
if (System.IO.File.Exists(this.txtFileName.Text.ToString()) == true)
{
MessageBox.Show("该文件已经存在，请重新命名！");
this.txtFileName.Text = "";
this.txtFileName.Focus();
}
else
{
pExport.ExportFileName = this.txtFileName.Text;
pExport.Resolution = lResolution;
pExportType = pExport as IExportImage;
pExportType.ImageType = esriExportImageType.esriExportImageTypeTrueColor;
pEnv = pActiveView.Extent;
pWorldFile = (IWorldFileSettings)pExport;
pWorldFile.MapExtent = pEnv;
pWorldFile.OutputWorldFile = false;
userRECT.top = 0;
userRECT.left = 0;
userRECT.right = Convert.ToInt32(pWidth);
userRECT.bottom = Convert.ToInt32(pHeight);
pDriverBounds = new EnvelopeClass();
pDriverBounds.PutCoords(userRECT.top, userRECT.bottom, userRECT.right, userRECT.top);
pExport.PixelBounds = pDriverBounds;
ITrackCancel pTrackCancel = new TrackCancelClass();
pActiveView.Output(pExport.StartExporting(), lResolution, ref userRECT, pActiveView.Extent, pTrackCancel);
pExport.FinishExporting();
MessageBox.Show("打印图片保存成功!", "保存", MessageBoxButtons.OK);
this.Close();
}
}
else
{
MessageBox.Show("请保存文件!");
}
}
public IActiveView ResActiveView
{
get {
return pActiveView;
}
set {
pActiveView = value;
}
}
private void txtResolution_ValueChanged(object sender, EventArgs e)
{
cmbPageSize_SelectedValueChanged(null,null);
if (this.radioButton3.Checked == true)
{
this.txtWidth.Text = pWidth.ToString(".00");
this.txtHeight.Text = pHeight.ToString(".00");
}
}
private void cmbPageSize_SelectedValueChanged(object sender, EventArgs e)
{
switch(cmbPageSize.Text)
{
case "自定义大小":
txtWidth.Focus();
break;
case "A4":
showWH(21,29.7);
break;
case"A3":
showWH(29.7, 42);
break;
case"A2":
showWH(42, 59.4);
break;
case"A1":
showWH(59.4, 84.1);
break;
case"A0":
showWH(84.1, 118.9);
break;
}
}
//显示宽度和高度
//传入的参数必须是厘米
private void showWH(double pW,double pH)
{
pWidth = Convert.ToDouble((pW / 2.54) * Convert.ToDouble(txtResolution.Value));
pHeight = Convert.ToDouble((pH / 2.54) * Convert.ToDouble(txtResolution.Value));
if (this.radioButton1.Checked == true)
{
this.txtWidth.Text = Convert.ToDouble(pW / 2.54).ToString(".00");
this.txtHeight.Text = Convert.ToDouble(pH / 2.54).ToString(".00");
}
else if (this.radioButton2.Checked == true)
{
this.txtWidth.Text = pW.ToString(".00");
this.txtHeight.Text = pH.ToString(".00");
}
else
{
this.txtWidth.Text = pW.ToString(".00");
this.txtHeight.Text = pH.ToString(".00");
}
}
private void txtWidth_TextChanged(object sender, EventArgs e)
{
//if (!IsNumbericA(txtWidth.Text))
//{
// MessageBox.Show("请输入数字！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return;
//}
if (this.radioButton1.Checked == true)
{
pWidth = Convert.ToDouble(txtWidth.Text) * Convert.ToDouble(txtResolution.Value);
}
else if (this.radioButton2.Checked == true)
{
pWidth = Convert.ToDouble(Convert.ToDouble(txtWidth.Text) / 2.54) * Convert.ToDouble(txtResolution.Value);
}else
{
pWidth = Convert.ToDouble(txtWidth.Text);
}
}
private void txtHeight_TextChanged(object sender, EventArgs e)
{
//if (!IsNumbericA(txtHeight.Text))
//{
// MessageBox.Show("请输入数字！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
// return;
//}
if (this.radioButton1.Checked == true)
{
pHeight = Convert.ToDouble(txtHeight.Text) * Convert.ToDouble(txtResolution.Value);
}
else if (this.radioButton2.Checked == true)
{
pHeight = Convert.ToDouble(Convert.ToDouble(txtHeight.Text) / 2.54) * Convert.ToDouble(txtResolution.Value);
}
else
{
pHeight = Convert.ToDouble(txtHeight.Text);
}
}
private void radioButton1_Click(object sender, EventArgs e)
{
this.txtWidth.Text = Convert.ToDouble(pWidth / Convert.ToDouble(txtResolution.Value)).ToString(".00");
this.txtHeight.Text = Convert.ToDouble(pHeight / Convert.ToDouble(txtResolution.Value)).ToString(".00");
}
private void radioButton2_Click(object sender, EventArgs e)
{
this.txtWidth.Text = Convert.ToDouble(2.54 * pWidth / Convert.ToDouble(txtResolution.Value)).ToString(".00");
this.txtHeight.Text =Convert.ToDouble(2.54 * pHeight / Convert.ToDouble(txtResolution.Value)).ToString(".00");
}
private void radioButton3_Click(object sender, EventArgs e)
{
this.txtWidth.Text = pWidth.ToString(".00");
this.txtHeight.Text = pHeight.ToString(".00");
}
#region 通用函数
///
/// 是否大于０的数字
///
///
///
/// 是否正浮点数
///
///
///
/// 是否正整数
///
///
/// d、框体的调用：
//参数定义
IHookHelper layout_hookHelper = new HookHelperClass();
//参数赋值
layout_hookHelper.Hook = this.axPageLayoutControl1.Object;
ExportMapForm EMFrm = new ExportMapForm(layout_hookHelper);
EMFrm.ShowDialog();
希望与大家分享下自己查找到的或者自己修改后的代码，新手学习，若有错误欢迎批评指正！